outputs_1 = tf.layers.conv1d(outputs_1, filters=num_units//2, kernel_size=1)
时间: 2024-05-27 13:11:09 浏览: 16
This line of code is using the `tf.layers.conv1d` function to apply a 1D convolution to the `outputs_1` tensor. The convolution is being applied with a filter size (or number of filters) of `num_units//2`, which is the integer division of `num_units` by 2. The kernel size is set to 1, which means that the convolution is only being applied over a single time step.
The purpose of this convolution is to reduce the number of channels or features in the tensor. This can help to reduce the complexity of the model and prevent overfitting. The output of this convolution will be a tensor with `num_units//2` channels.
相关问题
def model(self): num_classes = self.config.get("CNN_training_rule", "num_classes") seq_length = self.config.get("CNN_training_rule", "seq_length") conv1_num_filters = self.config.get("CNN_training_rule", "conv1_num_filters") conv1_kernel_size = self.config.get("CNN_training_rule", "conv1_kernel_size") conv2_num_filters = self.config.get("CNN_training_rule", "conv2_num_filters") conv2_kernel_size = self.config.get("CNN_training_rule", "conv2_kernel_size") hidden_dim = self.config.get("CNN_training_rule", "hidden_dim") dropout_keep_prob = self.config.get("CNN_training_rule", "dropout_keep_prob") model_input = keras.layers.Input((seq_length,1), dtype='float64') # conv1形状[batch_size, seq_length, conv1_num_filters] conv_1 = keras.layers.Conv1D(conv1_num_filters, conv1_kernel_size, padding="SAME")(model_input) conv_2 = keras.layers.Conv1D(conv2_num_filters, conv2_kernel_size, padding="SAME")(conv_1) max_poolinged = keras.layers.GlobalMaxPool1D()(conv_2) full_connect = keras.layers.Dense(hidden_dim)(max_poolinged) droped = keras.layers.Dropout(dropout_keep_prob)(full_connect) relued = keras.layers.ReLU()(droped) model_output = keras.layers.Dense(num_classes, activation="softmax")(relued) model = keras.models.Model(inputs=model_input, outputs=model_output) # model.compile(loss="categorical_crossentropy", # optimizer="adam", # metrics=["accuracy"]) model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy']) print(model.summary()) return model给这段代码每行加上注释
```
def model(self):
# 获取配置文件中的参数
num_classes = self.config.get("CNN_training_rule", "num_classes") #分类数
seq_length = self.config.get("CNN_training_rule", "seq_length") #序列长度
conv1_num_filters = self.config.get("CNN_training_rule", "conv1_num_filters") #第一层卷积核数量
conv1_kernel_size = self.config.get("CNN_training_rule", "conv1_kernel_size") #第一层卷积核大小
conv2_num_filters = self.config.get("CNN_training_rule", "conv2_num_filters") #第二层卷积核数量
conv2_kernel_size = self.config.get("CNN_training_rule", "conv2_kernel_size") #第二层卷积核大小
hidden_dim = self.config.get("CNN_training_rule", "hidden_dim") #全连接层隐藏层大小
dropout_keep_prob = self.config.get("CNN_training_rule", "dropout_keep_prob") #dropout保留率
# 定义模型输入
model_input = keras.layers.Input((seq_length,1), dtype='float64')
# 第一层卷积
conv_1 = keras.layers.Conv1D(conv1_num_filters, conv1_kernel_size, padding="SAME")(model_input)
# 第二层卷积
conv_2 = keras.layers.Conv1D(conv2_num_filters, conv2_kernel_size, padding="SAME")(conv_1)
# 全局最大池化
max_poolinged = keras.layers.GlobalMaxPool1D()(conv_2)
# 全连接层
full_connect = keras.layers.Dense(hidden_dim)(max_poolinged)
# dropout层
droped = keras.layers.Dropout(dropout_keep_prob)(full_connect)
# relu激活层
relued = keras.layers.ReLU()(droped)
# 输出层
model_output = keras.layers.Dense(num_classes, activation="softmax")(relued)
# 定义模型
model = keras.models.Model(inputs=model_input, outputs=model_output)
# 编译模型
model.compile(loss='binary_crossentropy',
optimizer='adam',
metrics=['accuracy'])
# 打印模型结构
print(model.summary())
return model
```
下面给出一段详细代码:class CrnModel: def init(self, feature_num): self.feature_num = feature_num self.input_magnitude = layers.Input(shape=[128, feature_num], name='input_magnitude') model_output = self.structure_model() self.model = tf.keras.Model(inputs=self.input_magnitude, outputs=model_output) self.model.summary() def structure_model(self): layer_input = self.input_magnitude layer_output = layers.Conv1D(filters=64, padding='causal', dilation_rate=1, kernel_size=3, activation='relu')( layer_input) layer_output = layers.Conv1D(filters=64, padding='causal', dilation_rate=2, kernel_size=3, activation='relu')( layer_output) layer_output = layers.Conv1D(filters=64, padding='causal', dilation_rate=4, kernel_size=3, activation='relu')( layer_output) layer_output = layers.Conv1D(filters=64, kernel_size=1, activation='linear')(layer_output) layer_output = layers.Conv1D(filters=257, kernel_size=1, activation='relu')(layer_output) return layer_output。请你给出详细解释和注释
这是一个使用 TensorFlow 实现的 CRN(Causal Residual Network)模型,用于音频信号处理。下面是对代码的详细注释:
```
class CrnModel:
def __init__(self, feature_num):
self.feature_num = feature_num # 初始化类的特征数
self.input_magnitude = layers.Input(shape=[128, feature_num], name='input_magnitude') # 定义输入层,输入维度为 [128, feature_num]
model_output = self.structure_model() # 定义模型输出
self.model = tf.keras.Model(inputs=self.input_magnitude, outputs=model_output) # 定义完整模型
self.model.summary() # 打印模型概述
def structure_model(self):
layer_input = self.input_magnitude # 定义输入层
layer_output = layers.Conv1D(filters=64, padding='causal', dilation_rate=1, kernel_size=3, activation='relu')(layer_input) # 第一层卷积层
layer_output = layers.Conv1D(filters=64, padding='causal', dilation_rate=2, kernel_size=3, activation='relu')(layer_output) # 第二层卷积层
layer_output = layers.Conv1D(filters=64, padding='causal', dilation_rate=4, kernel_size=3, activation='relu')(layer_output) # 第三层卷积层
layer_output = layers.Conv1D(filters=64, kernel_size=1, activation='linear')(layer_output) # 用 1x1 卷积层降维
layer_output = layers.Conv1D(filters=257, kernel_size=1, activation='relu')(layer_output) # 最终输出层,输出维度为 257
return layer_output # 返回最终输出层
```
该模型使用了四个卷积层,其中 dilation_rate 表示膨胀率,padding 表示填充方式,kernel_size 表示卷积核大小,filters 表示卷积核数量,activation 表示激活函数。模型输入维度为 [128, feature_num],输出维度为 [128, 257],其中 257 表示频域的维度。最后使用 Keras 的 Model 类定义完整模型,并打印模型概述。
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